Hello guys. I have removed one stringer from bass boat. After removing decayed wood, nothing but "powder" so to speak, I was able to leave the "sides" of previous fiberglass in tact, and at the original height of stringer. Should I cut down the "sides" of the fiberglass to the surface of deck or leave a little height so the new stringer will have a "channe"l to sit in? Im guessing that it will be difficult to appy PB in channel and incase new stringer if I leave them where they are. Did I just answer my question? Appreciate any and all information.